rv (version 2.3.2)

numeric.rv: Numeric Random Vectors

Description

Creates or coerces rv objects of type "numeric".

Usage

# S3 method for rv
is.numeric(x)
  # S3 method for rv
as.numeric(x, …)
  # S3 method for rvfactor
is.numeric(x)
  # S3 method for rvfactor
as.numeric(x, …)

Arguments

x

an rv object to be coerced or tested.

…

further arguments passed to or from other methods.

Details

is.numeric(x) returns TRUE if and only if each component of x is numeric-valued. as.numeric.rv coerces an rv object into numeric-valued one. In effect, the function as.numeric is applied to all simulations. Random factors are not numeric (just as non-random factors aren't).

References

Kerman, J. and Gelman, A. (2007). Manipulating and Summarizing Posterior Simulations Using Random Variable Objects. Statistics and Computing 17:3, 235-244. See also vignette("rv").

See Also

numeric.

Examples

  x <- as.logical(rvbern(1,0.5)) # Bernoulli rv
  is.numeric(x)           # FALSE
  x <- as.numeric(x)      # coerce to numeric; all TRUEs become ones, FALSEs zeros
  is.numeric(x)           # TRUE